Chess-recorder.



PATENTED JAN. 30, 1906.

L. R. BABU.

CHESS RECORDER.

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PATENTED JAN; so, 1906.

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No. 810,899. PATENTED JAN. 30, 1906.

' L. R. BABU.

CHESS RECORDER.

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110310399. PATENTED JAN. so, 1906.

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CHESS RBGORDER.

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CHESS RECORDER.

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No. 810,899. I PATENTED JAN, 30, 1906 L. R. BABU.

CHESS RECORDER.

APPLIGATION FILED JULY 14.1903.

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No. 810,899. PATENTED JAN. 30, 1906. L. R. BABU. CHESS RECORDER.

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UNITED sTATEs F PATENT OFFICE. V

LALA RAJA BABU, OF PATIALA, PATIALA STATE, INDIA.

' CHESS-RECORDER.

Specification of Letters Patent.

Patented Jan. 80, 1906.

Application filed July 14, 1903. Serial No. 165,504.

To all whom it may concern.-

following is a full, clear, and exact specifica- B B tion.

The object of this invention is to provide a contrivance whereby themoves made during a game at chess are automatically recorded and thetime taken by the parties precisely kept, thereby doing away with thenecessity of a referee or the assistance of a third party to Write downthe moves as they are made, as well as obviating the chance of mistake.

According to this invention each chessman is provided with a keyprojecting from its base, each class of piece having a special kind ofward difiering from the wards of the keys attached to chessmen of anyother class. In each square of the chess-board is a keyhole which willfit the key of any piece. When a move is made, the piece moved is placedso that its key passes into the keyhole on the square to which it ismoved. A sharp halfturn is given to the piece, and its key operatescertain levers, which in their turn actuate certain type-bars, causingthemove made to be printed on a piece of paper held against a rollersomewhat in the manner of an ordinary type-writer. Each move thus madewill cause a record of the piece moved and the square to which it ismoved to be printed. Thus if a knight were moved to the fifth square infront of the white queen the record would read Kt Q5. If a pawn had beenmoved to the same square, the record would be P Q5, When a piece hasbeen taken, it is placed in a square at the end of the board and given asimilar-half-turn, when a record will be made of the taking of thatpiece. Thus if a bishop were taken by a knight moving to the fourthsquare in front of the white king the printed record would show Kt K4 XB. Similarly, the various movements of the men are recorded, the papermoving up after each move has been registered.

In order to more conveniently describe my invention, I propose to referto the accompanying drawings, in which similar figures of referencedesignate like parts throughout, and in which- Figure 1 is a generalplan of the complete chess-board and recording mechanism. Fig. 2 is ageneral plan of same with the top of the chess-board, roller, type-bars,and platform of recording mechanism removed. Fig. 3 is a similar viewshowing arrangement of the lower levers, &c. Fig. 4 is a frontelevation, partly in section, through lineAA ofFig. 2. Fig. 5 is avertical section through line through line C O of Fig. 2. Fig. 7 is avertical section through line D D of Fig. 2. Fig. 8 is a verticalsection through line E E of Fig. 2. Fig. 9 is an enlarged side elevationof the arrangement of toothed wheels actuating the roller andribbon-change mechanism. Figs. 10 and 11 are enlarged side view and planof dog mechanism for releasing the roller. Figs. 12, 13, 14, 15, 16, and17 are enlarged views showing the wards on the keys attached to theking, queen, bishop, knight, castle, and pawn, respectively.

The chess-board is made in the usual form, save that in the center ofeach square is a keyhole to fit any of the keys attached to the bases ofthe pieces. At each end of the board are provided sixteen additionalsquares with similar keyholes into which are placed the pieces as theyare captured, the squares 1 being reserved for pawns, 2 for the queen, 3for the bishops, 4 for the knights, 5 for the castles, and 6 for anypawn converted into a queen. Beneath the chess-board are a series ofbars the operation of which by the Wards of the keys on the piecescauses the moves to be registered.

7 Fig. 6, is a horizontal cross-bar which is attached to three shortvertical cranks 8, fixed to a pivoted rod 9. To the top of the bar 7 isfixed a rod 10, connected to a bell-crank lever 11, which is in turnattached to a rod 12, the other end of the latter being connected to abell-crank lever 13, on whose other end is attached the type-head whichprints R to represent the line of the kings castle. Similarly, thehorizontal cross-bars l4, 15, 16, 17, 18, 1E}, and 20 operate the typesrecording ttfi t GLE, 1(1 GQQ, B, (lit7and R to represent the lines ofthe kings knight, kings bishop, king, queen, queens bishop, queensknight, and queens castle, respectively. Small springs 21 are soarranged as to cause these bars to return to their former position aftereach movement.

22, Fig. 5, is a horizontal bar capable of sliding longitudinallybetween plates 23 and 24. This bar is attached to a curved rod 25, whichin turn is connected to a crank 26 on a pivoted rod 27. Another crank 28on this of Fig. 2. Fig. 6 is a vertical section rod 27 is attached tothe bar 29, connecting with the crank-lever 30, carrying the type toindicate 1. The actuating of the bar 22 is intended to record the numberof the row of the square in which the piece has been placed. Similarly,the horizontal bars 31, 32, 33, 34c, 35, 36, and 37, Fig. 2, actuatetypes to record 4 7: 737 d 8, though for the purpose of simplificationthe connections of these bars are not shown. It will readily be seenthat it is not necessary that the pivoted rod 27 should be inserted inthe mechanism necessary to make the horizontal bar 22 operate itstype-head or similar pivoted rods to make the horizontal bars 31, 32,33, 31, 35, 36, and 37 operate their respective typeheads; but I havefound it convenient to do so in order to properly arrange the varioustypebars in their basket. A spring 38 is attached to the mechanism ofeach of these horizontal bars to cause them to return to their normalposition after each movement.

Directly below each of the horizontal bars 22, 31, 32, 33, 31, 35, 36,and 37 are a series of six somewhat similar bars 39, 4.0, 11, 12, 4:3,and 4A, capable of longitudinal movement between the plates 23 and 2 1.The uppermost of these bars 39 is operated by the key on the pawn, thesecond bar &0 is operated by the key on the castle, and similarly thebars 4.1, 42, 4:3, and P1 are operated by the keys on the knight,bishop, queen, and king, respectively. One end of the bar44= is attachedto a crank 45 and pivoted rod 16, (to which all the bars 14: aresimilarly connected.) On this pivoted rod is an arm #17, attached to abell-crank lever, on the other end of which is the type-head to print Kto represent the king. A spring 17 exerts an upward force on the arm 17to return the bar 1 1 to its normal position after each movement.Similarly, the bars 39, e0, &1, 12, and et3 are connected to pivotedrods 48, 49, 50, 51, and 52, respectively. These pivoted rods run thelength of the board, and to each rod is attached the eight bars whichare intended to operate the same type. Thus the eight bars 13, which areactuated by the queens key, are connected to the same pivoted rodviz.,52. Springs similar to 4:7 actuatethe bars 39 to as to cause them toreturn to their normal positions after each movement. These springs arenot shown for the sake of clearness in the drawings.

On reference to Figs. 12 to 17 it will be seen that the key on eachpiece is provided with a broad upper ward to actuate both the crosshorizontal rod (which operates the type marking the line in which thesquare to which a piece is moved occurs) and the top horizontal bar(which operates the type indicating the number of the row of the square)and with a narrower lower ward to operate the particular bar whichactuates the type indicating the name of the piece to which the key isattached.

The type are so arranged in the basket that the three type-heads (thefirst to indicate the kind of piece moved, the second the file in whichthe square to which the piece is moved occurs, and the third the numberof the row of that square) strike the paper on which the impressions arebeing made without interfering with each other and so that the three maystrike together in their correct places. Thus if the castle be moved tothe third square in front of the queens bishop the bars operated willcause the following to print R B2 The arrangement of the type in thetype-basket need not, however, be exactly as shown in Fig. 1, thoughthat arrangement is a convenient one. The type-heads 53, 54:, 55, 56,57, and 58 print the signs representii'ig the king, queen, bishop,knight, castle, and pawn, respectively, and imprint on the left-handside of the paper to indicate the nature of the piece moved. Thetype-heads 59. 60, 61, 62, 63, 64, 65, and 66 print the figures 1 to 8,respectively indicating the number of the row of the square to which thepiece has been moved. The type-heads 67, 68, 69, 70, 71, 72, 73, and 74:print the signs representing the files of kings castle, kings knight,kings bishop, king, queen, queens bishop, quecns knight, and queenscastle.

Beneath the additional sixteen squares placed at each end of the boardand into which the pieces taken are placed is the mechanism whereby arecord is made of any piece being placed therein. This mechanism issomewhat similar to that provided for registering the moves of thepieces on the board, but not so complicated by reason of the fact thateach square does not require a series of six bars to register the natureof the piece inserted, but as each square is reserved for a specialclass of piece only one bar is suiiicient for the purpose. Thus for theeight squares 1 reserved for the pawns there are two horizontal bars 75,Fig. 7, which are suitably connected and are attached to the lever 76,whose other end is connected, by means of a series of rods, cranks. andpivoting-bars, to the type-head indicating the pawn. A spiral or otherspring 76, Fig. 7, is attached to the lever 76, causing it to return tonormal after each movement. For the other pieces short horizontalcrossbars are employed, 77 to be worked by the queen, 78 by the bishop,79 by the knight, 80 by the castle, and 81 by the pawn converted into aqueen. All these bars are suitably connected to the type-heads they areintended to operate, being returned to normal under the influence ofsprings 77, 78, 7 9, 80, and 81, respectively. (See Figs. 7 and 8.)Above these bars and so arranged as to be operated by the key of anypiece placed in any of the squares are two parallel connected horizontalbars 82, running longitudinally, which are connected to a lever 83,whose other end is attached to a rod 81, attached to the bell-crank itis to this rod 156 that the mechanism for lever 85, actuating the rod86, controlling the type-sign to indicate takes? Between the bars 82 andis a fixed plate 157, bored with keyholes similar to the top of thechessboard, which guide the keys and enable them to operate their leverscorrectly.

The sign is printed in front of the sign of the piece which has beentaken. Thus a pawn on being taken and placed in one of the squaresallotted for its reception and given a half-turn will cause a record tobe printed as follows: X P.

It will be seen that there are two sets of sixteen additional squares,(one set at each end of the board.) The bars operated by the same classof pieces are connected across that is, the bars operated by the pawnsat one end are connected by a rod 156, Fig. 3, to the bars operated bythe pawns at the other end, and

operating the type-bar is connected. Similarly, thebars at each endoperated by the queen, pawn converted into a queen, bishop, knight, andcastle are connected by bars 148, 149, 150, 151, and 152, respectively.The top bars to operate the sign are also connected across by the bar147. The springs 7 6, 7 7 78, 79, 80, and 81*, respectively, returnthese bars to normal after each movement.

The type-bar 87 prints the sign X while the type-bars 88, 89, 90, 91,92, and 93 print the signs indicating the castle, knight, bishop, queen,and pawn, and the pawn converted into a queen, respectively.

The printing is performed upon a piece of paper placed around the roller94, similar to rollers used in type-writers, with this difference,however, that the roller does not travel longitudinally, but merelyrotates. The paper is kept in position by small rollers 94, pressingagainst the roller 94. The roller rotates under the influence of aspring wound in the drum 95, which is geared to the roller through themedium of the cog-wheels 96 and 97. The rotation of the roller is,however, controlled by an arrangement of dogs 98, gearing with thetoothed wheel 99 on spindle 100, which through the medium of the seriesof cogwheels 101, 102, and 103 gears with the cogwheel 96, attached tothe spring-drum 95. The dogs are fixed to a pivoted rod 104, which ispartially rotated by means of a bent arm-rod 105,attached to thecross-bar 106,actuated each time a piece is given a half-turn on anysquare of the board by means of the pins 107, placed on each of the bars22, 31, 32, 33, 34, 35, 36, and 37. As the pivoted rod 104 is partiallyrotated it causes the loose jaw 98 of the dogs 98 to slip off the toothof the toothed wheel 99 in engagement with it and to rise under theaction of the springs 98 ready to meet the next tooth as the wheel 99rotates and the fixed jaw 98 of the dogs to engage with the toothreleased by the loose jaw 98*. During this movement the toothed wheel 99will have l The bar 106 is also actuated by pulling thering 108,attached to the bar 109, should it be desired at any time to rotate theroller without printing a move. Each time a move is made and recordedthe dogs will move sufficiently to allow the toothed wheel 99 to rotatethe distance of one tooth, thus releasing the drum suficiently to causeit to rotate the roller one line up. A suitable spring 155 is placed tocause the dogs and the connectingrods and levers to return to normalafter each move.

It will be observed that the dogs are only actuated when a piece isplaced in any square of the board itself, but are not afiected by theplacing of any piece in any of the additional squares at the ends of theboard. When a piece, therefore, is taken, it should first be placed inits appointed square at one end of the board and given a half-turn, sothat the fact of its being so taken is recorded, and then the actualmove recorded in the manner indicated. If a pawn on the queen four betaken by a bishop, the pawn would be placed in one of the allotedsquares, when the type would register P and then the bishop placed onthe square vacated by the pawn, when the type would further register themove and the whole record would read B Q4 X P, and the roller would moveup one line. Were the bishop first to be placed in position and then thepawn, the record of the taking of the pawn would be printed on the lineimmediately below the proper line.

At the side at each end are arranged a series of five button-headed keys110, 111, 112, 113, and 114, the pressing of which cause signsindicating check, castles, resigns, draw, and mate, respectively, to berecorded. The mechanisms whereby the printing of the key causes thedesired sign to be printed is similar for all keys and only that of oneneed be described. The key 111, Fig. 5, for castles is attached to avertical rod 115, which is connected to an arm on a pivoted rod.116,(the key for castles at the other side of the recorder being alsoconnected to thisrod 116.) On this rod 116 is another fixed arm 116,whose end is attached to a rod 116", attached to the crank-levercarrying the type. 117 is the type-bar to register the sign for check,while 118, 119, 120, and 121 register mate, castles, draw, and designs,respectively. All these keys and their connections return to normalunder the influence of suitable springs.

The typeheads are arranged to strike through a ribbon 122 in the mannercommon i to ribbon type-writers. Themethod in which this ribbon movesand the manner in which i it is placed in reference to the rollerare,however, different. The ribbon is placed so as to i be and to travel atright angles to the axis of the roller and is wound on two drums 123 and124, the drum 123 being loosely mounted on the spindle 100 and the drum124 loosely mounted on spindle 125 of cog-wheel 126, which is rotatedthrough the medium of the cog-wheel 127 by the cog-wheel96 on springdrum95. On the spindles 100 and 125 are mounted double disks 128 and 128,which revolve with their respective spindles, but are capable oflongitudinal movement on their spindles. On one of each pair of thesedisks are certain projections arranged to engage with pins placed on theside of the ribbondrums 123 and 124, while the other of each pair ofdisks revolves in slots in the pivoted arms 129 and 129, which by meansof rods 1 130 and 130, respectively, are connected to a lever 131, sopivoted that one of the disks is i in engagement with its drum while theother 1 disk will be free from its drum. Thus while one drum revolveswith its spindle and winds the ribbon on itself the other drum will be lloose and admit of the ribbon on it being unwound. To change thedirection in which the ribbon is being wound, an arrangement is shown inFig. 9. On the drum 95 are attached one or two pins 132, which as theyrotate engage with the tooth-wheel 133 and cause it to move the distanceof one tooth each time a pin engages with it. On this tooth-wheel 133are pins 134, which engage with the toothwheel 135, causing it to movethe distance of one tooth each time one of the pins 134 engages with it.Projecting from the side of the tooth-wheel 135 is a semicircular wall136, made to incline down to the level of the toothwheel 135 at one end.This wall 136 during a portion of its revolution presses against thelever 131 and causes the lever to assume the position in which the disk12 engages with the ribbon-drum 124. When the wall has so far moved thatits end gets beyond the lever, such lever under the influence of aspring 131 moves so that the disk 128 falls out of engagement with theribbon-drum 124, while the other disk and drum come into engagel ment,causing that drum to revolve with its spindle and so change thedirection of the winding of the ribbon. As the wall 136 further revolvesits inclined end comes into contact with the lever 131 and causes itgradually to assume the first-described position, when the direction ofthe winding of the ribbon is again changed. By adjusting the number ofteeth on the wheels 133 and 135 and the number of pins 132 and 134 thedirection of the travel of the ribbon can be arranged to change at theproper time, having regard to its length.

As after each move is recorded the roller, with the paper on which therecord is being printed, is automatically moved up one line, it followsthat the whole series of moves alternately made by each side appear inone long column. In order to facilitate the reading of the moves sorecorded, they are divided off into couples by means of a line which isautomatically printed after the move of one side. This is accomplishedin the following manner: On the spindle 125 is a disk 137, Fig. 5, onwhich are seven pins 138. A lever 139, with a curved tooth 140 on onearm, is so pivoted that as the drum rotates the pins will strike againstthe said tooth and cause the lever-arm to which it is attached to bejerked up. On the other end of the lever is a slot through which a rod141 passes, having a stop-nut toward its lower end and its upper endbeing attached to the crank-lever 141, carrying the type-head to print astraight line. As the toothed end of the lever 139 is knocked up by oneof the pins it causes the other end to give a sudden jerk to the rod141, thereby making the type-head impinge on the paper through theribbon. The actuating-spindle of the ribbon-drums 123 and 124 beingdriven through the cog-wheels 101 and 126, respectively, each of whichare set in motion by the releasing of the toothed wheel 99, which isprovided with fourteen teeth, the pins 138 will only come into positionto strike the tooth 140 at every other move of the roller and ribbon.The line will therefore be printed so as to separate the record of movesinto groups of two.

As a limit of time is placed on a players moves, (being generallyfifteen moves to the hour,) I have devised an arrangement whereby thetime occupied by each player in making his moves is recorded. This isaccomplished by two clocks 142 and 142,one for each player, which are soarranged that only one clock(that of the player whose turn it is toplay) works at a time, the other clock being stopped by a brake attachedto the rod 143, engaging with some convenient portion of the works ofthe clock to be stopped. The rods 143 and 143 (one for each clock) areattached to opposite ends of the lever 144, so pivoted that when eitherrod is in engagement and is stop ping its clock the other rod disengagesand allows its clock to work. The position of the lever is controlled bya rod 145, attached to one end of a trip 146, whose other end is in aposition to engage with the pins 138. \Vhen one of the pins 138 engageswith said trip 146, the end of the latter is forced down, making one endof the lever 144 rise suificiently to cause the brake to be releasedfrom the clock at one end and to be put on the clock at the other end. Aspring is so arranged to cause the lever 144 to assume its formerposition as soon as the trip 146 is released from engagement with thepin 138. As these pins are IIC to fit into any of said keyholes, typeactuated seven in number compared with the fourteen teeth of the toothedwheel 99, which actuates the disk 137, a pin 138 will only engage thetrip 146 every other move, said trip beingreleased during theintermediate moves. The clocks will therefore work alternately. As soonas a player makes a move and records it in the manner above indicatedthe carriage moves up one line, the ribbon mechanism moves one space,and the clock recording the time of that player stops and the otherclock starts.

A ratchet-handle 154 is provided for winding up the spring-drum when itruns down.

.It'must be understood that the drawings illustrate one of the manyforms my invention may take, and it will be seen that the arrangement ofthe various parts and their connections can be altered in many wayswithout departing from my invention.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatWhat I claim is- 1. In an apparatus for recording the moves at a game ofchess, the combination of agameboard having a keyhole in the center ofeach square, a key on the base of each piece adapted to fit into any ofsaid keyholes, type corresponding with the name of the piece moved,actuated by the partial rotation of the key on the piece so moved, a lugor ward on the key, a series of six horizontal bars placed under each ofthe eight cross-lines of squares actuated by said lug or Ward when thekey is rotated, a bell-crank lever connected to the uppermost bars, atype-head connected on the other end of said lever, a recording-platenon which the type-head is adapted to print a sign representing the nameof one piece, a typebar actuated in like manner from the second bars inall the series, said type-bar carrying a sign to represent the name ofanother piece, and similarly with the remaining bars of all the series,said lug or ward on the key being so placed that when such key isinserted in a keyhole and rotated it actuates the bar in the seriesconnected to the type-bar intended to print the name of the piece towhich such key is attached.

2. In an apparatus for recording the moves at a game of chess, thecombination of a gameboard having a keyhole in the center of eachsquare, a key on the base of each piece adapted kings castle connectedto the other end of said bell-crank lever, a type-head carrying the signrepresenting the file of the kings knight actuated by the next bar, andso on, the position of all such lugs or wards on the keys being similarso that when a key is rotated it actuates the bar in the file of squaresin which it is placed to cause the sign of that file to be printed.

3. In an apparatus for recording the moves ata game of chess, thecombination of a gameboard having a keyhole in the center of eachsquare, a key on the base of each piece adapted to fit into any of saidkeyholes, type recording the number of the row of squares to which apiece is moved actuated by the key of said piece, a lug or ward on thekey, eight horizon tal cross-bars, one placed under each of the eightcross-rows of squares, one of which bars being actuated by the partialrotation of the key, a bell-crank lever connected to the bar under theback row of the white side of the board, said lever carrying type toprint the sign 1 to represent the number of each square in that row, thenext bar being in like manner arranged to actuate the type printing thesign 2 and similarly the other bars, the last being connected to actuatethe type-bar printing the sign 8, the position of all such lugs or wardson the keys being similar so that when a key is inserted in a keyholeand rotated it actuates the bar in the cross-row in which it is placedand through it causes the sign of that row to be printed.

4. In an apparatus for recording the moves at a game of chess, thecombination of a gameboard having a keyhole in the center of eachsquare, a key on the base of each piece adapted to fit into any of saidkeyholes and be capable of partial rotation, type actuated by therotation of said key, two lugs or wards on said key, a series of sixhorizontal bars placed under each of the eight cross-lines of' squares,one of which bars being actuated by the first of said lugs, the positionof said lug varying according to the name of the piece, a bell -cranklever connected to the upper- .most bars in all the series, a type-baradapted to print a sign representing the name of one piece mounted onsaid bell-crank lever, a recording-platen for said type-bar, a type-barconnected to and actuated by, in like manner, the second bars in all theseries, said type-bar carrying a sign to represent the name of anotherpiece, and similar with the remaining bars of all the series, typeindicating the file of the square to which the piece is moved, said typebeing actuated by the upper portion of said second lug, the position ofsaid second lug being the same for any piece, eight horizontallongitudinal bars, one placed under each of the eight longitudinal linesof squares, one of which bars being actuated by the partial rotation ofsaid key, a bell-crank lever connected to the bar under the extreme bysaid key, said type indicating the file of the square to which the piececarrying the key is moved, a lug or ward on said key, eight horizontallongitudinal bars, one placed under I each of the eightlongitudinallines of squares, one of said bars being adapted to be actuated by saidlug or ward of said key, a bell-crank lever connected to the bar underthe extreme lineof squares on the right side, a type-head carrying thesign representing the file of the line of squares on the right side, atype-head attached to the other end of said bell-crank, said type-headprinting the sign representing the lile of the kings castle, theactuation of the next bar printing the sign of the kings knight and soon, type actuated by the lower portion of said second lug on said key,the position of which being the same for any 'piece, said type recordingthe number of the row of squares to which a piece 1s moved, eighthorizontal cross-bars, one placed under each of the eight rows ofsquares, one of said bars being actuated by the partial rotation of saidkey, a bell-crank lever connected to the bar under the back row of thewhite side, type connected to said lever to print the sign 1 torepresent the number of each square in that row, the next bar being inlike manner arranged to actuate the type carrying the sign 2 andsimilarly the other bars, the last bar being connected to actuate thetypebar carrying the sign 8, all three type-bars actuated by therotation of a piece making their record together.

5. In an apparatus for recording the moves at a game of chess, sixteenadditional squares at each end of the board having keyholes therein forthe reception of the taken pieces, a type-bar carrying the sign torepresent the taking of a piece, means for actuating said type-bar, andmeans for printing the name of the piece taken consisting of horizontalbars placed below said keyholes, typebars carrying the signsrepresenting the pieces, queen, bishop, knight, castle, pawn and pawnconverted into a queen, said typebars being connected to the horizontalbars, special squares for each class of piece and the record being madeby the insertion of the key on the base of a piece and the partialrotation of the same.

6. In combination in an apparatus of the class described, a game-boardand pieces therefor, keys on the base of said pieces adapted to litkeyholes on the squares of said board and operate means for printing thename of the piece and the square to which it is moved by the partialrotation of the piece, a platen and means for operating the sameconsisting of clockwork mechanism controlled by an escapement-wheel,dogs engaging said escapement-wheel, said dogs being operated by themovement of the pieces, and means for operating the dog mechanismindependently of the pieces, substantially as described.

7. In combination in an apparatus of the class described, a game-boardand pieces therefor, keys on the base of said pieces adapted to fitkeyholes in the squares of said board and operate means for printing thename of the piece and the square to which it is moved by the partialrotation of the piece, a clockwork mechanism rotating a platen, meansfor controlling the movement of said platen consisting of anescapement-wheel controlled by dogs, and means for printing a line belowthe record of every other move consisting of a spindle rotated by saidclockwork mechanism, a disk on said spindle, pins mounted on said disk,the number of pins of said disk being exactly half that of the teeth ofsaid escapernent-wheel, a pivoted lever having a curved end capable ofengagement with said pins which by the rotation of said spindle arecaused to strike said curved end of the lever and cause its other end toactuate a crank-lever carrying a type-head to print a straight line.

8. An apparatus for recording the moves at a game of chess comprising agame-board having a keyhole in the center of each square, keys'on thebase of the pieces adapted to tit said keyholes and operate means forprinting the name of the piece and the square to which it is moved bythe partial rotation of the piece, a platen and means for operating thesame consisting of clockwork mechanism controlled by anescapement-wheel, dogs engaging sai escapement-wheel, said dogs beingoperated by the movement of the pieces, means for operating the dogmechanism independently of the movement of the pieces, sixteenadditional squares at each end of the board, means for recording thetaking or the pieces, means for printing a line below the record ofevery other move, additional, means independent of the escapementmechanism for printing the signs to represent check, castles, resigns,draw and mate respectively, and means for alternately stz'irting andstopping two clocks to record the time taken by each player,substantially as described.

In testimony whereof ihave signed my name to this specification in thepresence of two subscribing witnesses.

LALA RAJA BABU.

\Vitnesses:

BANG BIHARI DIL, OHoLn SHUNKER.

ICO

